* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: Arial, sans-serif;
    background: #f8fafc;
    color: #0f172a;
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    width: min(1120px, calc(100% - 32px));
    margin: auto;
}

/* TOP BAR */
.top-bar {
    background: #ffffff;
    border-bottom: 1px solid #e2e8f0;
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.top-wrap {
    display: flex;
    justify-content: flex-start;
    align-items: center;
}

.home-btn {
    display: inline-block;
    padding: 10px 18px;
    border-radius: 999px;
    background: #0f172a;
    color: #ffffff;
    font-weight: 700;
    transition: 0.3s ease;
}

.home-btn:hover {
    transform: translateY(-2px);
    background: #1e293b;
}

/* HERO */
.hero {
    padding: 36px 0 18px;
    background: linear-gradient(to bottom, #eef4ff 0%, #f8fafc 100%);
}

.hero-box {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 28px;
    padding: 38px;
    box-shadow: 0 18px 38px rgba(15, 23, 42, 0.06);
    text-align: center;
}

.hero-badge {
    display: inline-block;
    padding: 7px 13px;
    border-radius: 999px;
    background: #fff7d6;
    color: #9a6700;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 14px;
}

.hero-box h1 {
    font-size: clamp(2rem, 4vw, 3.2rem);
    line-height: 1.15;
    margin-bottom: 12px;
}

.hero-box h1 span {
    color: #1d4ed8;
}

.hero-box p {
    max-width: 760px;
    margin: auto;
    color: #475569;
    font-size: 1rem;
}

/* SECTIONS */
section {
    padding: 70px 0;
}

.section-head {
    text-align: center;
    margin-bottom: 34px;
}

.mini-title {
    display: inline-block;
    color: #f59e0b;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 800;
    font-size: 0.84rem;
    margin-bottom: 10px;
}

.section-head h2 {
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    margin-bottom: 10px;
}

.section-head p {
    color: #475569;
    max-width: 760px;
    margin: auto;
}

/* STUDENT GRID */
.student-area {
    padding-top: 42px;
}

.student-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
}

.student-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 24px;
    padding: 24px;
    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.05);
    transition: 0.3s ease;
}

.student-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 36px rgba(15, 23, 42, 0.08);
}

.card-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    color: #1e3a8a;
    display: grid;
    place-items: center;
    font-weight: 800;
    margin-bottom: 16px;
}

.student-card h3 {
    font-size: 1.15rem;
    margin-bottom: 8px;
}

.student-card p {
    color: #475569;
    margin-bottom: 16px;
    font-size: 0.95rem;
}

.card-link {
    display: inline-block;
    width: 100%;
    text-align: center;
    padding: 10px 12px;
    border-radius: 10px;
    font-weight: 600;
    background: linear-gradient(135deg, #2563eb, #1d4ed8);
    color: #fff;
    margin-top: 8px;
    transition: 0.3s ease;
    font-size: 14px;
}

/* QUICK INFO */
.quick-info {
    background: #f1f5f9;
}

.quick-box {
    background: linear-gradient(135deg, #0f172a, #1e293b);
    color: #ffffff;
    border-radius: 30px;
    padding: 34px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    align-items: center;
}

.quick-left h2 {
    margin: 10px 0;
    font-size: clamp(1.8rem, 3vw, 2.4rem);
}

.quick-left p {
    color: #cbd5e1;
}

.quick-right {
    display: grid;
    gap: 12px;
}

.info-item {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 18px;
    padding: 14px 16px;
}

.info-item strong {
    display: block;
    margin-bottom: 4px;
    color: #facc15;
}

.info-item span {
    color: #dbe4f0;
    font-size: 0.92rem;
}

/* FOOTER */
.footer {
    background: #0f172a;
    color: #e2e8f0;
    padding: 28px 0;
}

.footer-wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.footer p {
    color: #cbd5e1;
    margin-top: 6px;
}

.footer-home {
    display: inline-block;
    padding: 10px 18px;
    border-radius: 999px;
    background: #facc15;
    color: #0f172a;
    font-weight: 700;
    transition: 0.3s ease;
}

.footer-home:hover {
    transform: translateY(-2px);
}

/* RESPONSIVE */
@media (max-width: 1024px) {
    .student-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .quick-box {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    section {
        padding: 54px 0;
    }

    .hero-box,
    .quick-box,
    .student-card {
        padding: 20px;
    }

    .student-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr); /* Desktop = 3 boxes */
    gap: 22px;
}

    .hero {
        padding: 26px 0 12px;
    }

    .hero-box {
        text-align: left;
    }

    .footer-wrap {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 768px) {
    .student-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}